perturbation : 125 phrases in 25 subjects |
Agriculture | 1 |
Art | 1 |
Astronautics | 1 |
Communications | 15 |
Computer numerical control | 5 |
Earth sciences | 9 |
Economy | 6 |
Electronics | 14 |
Energy industry | 2 |
Environment | 9 |
Finances | 7 |
General | 7 |
Health care | 5 |
Information technology | 1 |
Labor law | 1 |
Law | 5 |
Life sciences | 11 |
Mathematics | 5 |
Measuring instruments | 2 |
Mechanic engineering | 1 |
Medical | 7 |
Natural sciences | 3 |
Physical sciences | 1 |
Statistics | 2 |
Transport | 4 |